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    <!-- 使用箭头函数改写下列代码
    arr.forEach(function (v, i) {
        console.log(v, i)
    }) -->
    <script>
        const arr = ['周星驰', '周深', '刘德华', '刘昊然'];
        arr.forEach((v, i) => {
            console.log(v, i);
        })
    </script>
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